gnocchi doesn't match incoming metric names against archive_policy_rules

[yadneshk]

Before reporting an issue on Gnocchi, please be sure to provide all necessary information.

Which version of Gnocchi are you using

4.4.1

How to reproduce your problem

• Create an archive-policy-rule in gnocchi to map all volume metrics to archive policy medium

  $ openstack metric archive-policy-rule list 
  +---------+---------------------+----------------+
  | name    | archive_policy_name | metric_pattern |
  +---------+---------------------+----------------+
  | vol-med | medium              | volume.*       |
  | default | low                 | *              |
  +---------+---------------------+----------------+

• Create a volume resource in openstack

  $ openstack volume list 
  +--------------------------------------+------------+-----------+------+---------------------------------+
  | ID                                   | Name       | Status    | Size | Attached to                     |
  +--------------------------------------+------------+-----------+------+---------------------------------+
  | d8a8ddd5-fb71-4831-8cba-ac39999a0ddd | vol1       | available |    1 |                                 |
  +--------------------------------------+------------+-----------+------+---------------------------------+

What is the result that you get

• The archive policy high is assigned to it which is defined in /etc/ceilometer/pipeline.yaml.

  
  openstack metric list | grep d8a8ddd5-fb71-4831-8cba-ac39999a0ddd
  | 0f3af7a8-d021-4a1a-97a9-f86640d85928 | high | volume.size | GB  | d8a8ddd5-fb71-4831-8cba-ac39999a0ddd |

$ cat /etc/ceilometer/pipeline.yaml

sources:

• name: meter_source meters:
  • "*" sinks:
  • meter_sink sinks:
• name: meter_sink publishers:
  • gnocchi://?archive_policy=high&filter_project=service

What is result that you expected

• This metric should've been created with medium archive policy

Additional info

• Gnocchi only tries to match the metric names to archive policy rules if the archive policy name in the incoming metric in None https://github.com/gnocchixyz/gnocchi/blob/master/gnocchi/rest/api.py#L571-L589

• It seems that all incoming metrics from ceilometer have archive_policy_name set to it which either comes from pipeline.yaml or is set to ceilometer-low which is the default AP. Due to which the metric names are not matched to AP rules

  (Pdb) definition
  {'name': 'volume.size', 'archive_policy_name': 'high', 'unit': 'GB'}
  (Pdb) definition.get('archive_policy_name')
  'high'

[tobias-urdin]

Isn't that the entire point of the API and the integration from Ceilometer into Gnocchi that ceilometer would be able to select this, it seems intentional, no?

[tobias-urdin]

Closing, feel free to open if still relevant, thanks!